* {
	margin: 0px auto;
	padding: 0px;
	font-size: 12px;
	font-family: "微软雅黑";
}

a {
	color: #296FB8;
	text-decoration: none;
}

a:hover {
	text-decoration: underline;
}

.fl {
	float: left;
}

.fr {
	float: right;
}

.ohcb {
	overflow: hidden;
	clear: both;
}

.nav {
	list-style: none;
}

.nav li {
	float: left;
}

.w800 {
	width: 800px;
}

.w350 {
	width: 350px;
}

.ptb5 {
	padding: 5px 0px;
}

.lh3e {
	line-height: 3em;
}

.fs14 {
	font-size: 14px;
}

.fs18 {
	font-size: 18px;
}

.fw {
	font-weight: bold;
}

.tac {
	text-align: center;
}

.tar {
	text-align: right;
}

.orange {
	color: #FF6600;
}

.bg {
	background: #E2F2FF;
}

.cp {
	cursor: pointer;
}

[type=checkbox] {
	cursor: pointer;
}

#nav #now {
	color: #FFFFFF;
	background: #FF6600;
	background: url(../img/homework/taobao_bg.png) no-repeat right 0px #FF6600;
}

#nav #last {
	background: #E4E4E4;
}

#nav li {
	padding: 0px 25px;
	width: 110px;
	font-size: 15px;
	font-weight: font;
	line-height: 23px;
	background: url(../img/homework/taobao_bg.png) no-repeat right 0px #E4E4E4;
	cursor: pointer;
}

#nav li:hover {
	background: #FFE6BA;
}